Fix Windows 10 Doesn't Recognize or Detect Second Hard Drive Error

Tracy King updated on Aug 06, 2019 to Storage Media Recovery | How-to Articles


Don’t worry if the second hard drive doesn’t show up or appear in Windows 10 File Explorer, Disk Management or even BIOS. Reliable solutions with EaseUS hard drive data recovery software will help you resolve the Windows 10 doesn’t recognize or detect the second hard drive error without losing any data.

Windows 10 Doesn't Recognize/Detect the Second Hard Drive

"Hi guys, does anyone of you know how to make the second hard drive to show up in Windows? I added a second hard drive to my computer about a month ago, and my computer became much faster. Everything went so well until this morning.  

I started my computer, but the second hard drive didn't show up in the File Explorer. Then I checked the Disk Management. Still, nothing was there. I saved a lot of important data on the second hard drive. So how can I make the second hard drive to show up in Windows 10? If you happen to have a solution, please let me know."

What will you do when the hard drive or the second hard drive fails to show up on your Windows PC? Relax! To resolve this issue, you'll need to diagnose the exact reason that causes your second hard drive undetectable. 

Follow this page, you'll find reliable methods and tools to effectively fix hard drive or second hard drive that's not showing up in Windows error on your own.

Diagnose and Fix Unrecognized Second Hard Drive in Windows 10

To troubleshoot this issue, you can go through the tutorial guide in this part to diagnose causes of undetectable second hard drive and follow solutions here to make it show up again. 

Phase 1. Check the Second Hard Drive in BIOS

  • Step 1: Restart PC and press F2 to enter BIOS.
  • Step 2: Enter Boot Menu to check if the second hard drive is detected.
  • Check second hard drive in BIOS.
  • Step 3: Try below tips if the second hard drive doesn't show up:
  • First, unplug and re-plug the hard drive from the computer case.
  • Next, change the SATA/ATA cable and the power wire, reconnect the drive to PC.

Remember to restart the PC each time to check if the second disk shows in BIOS. If the hard drive still doesn't show up, it's probably having a physical issue. The best way is to take to a local after-sales service center of the hard drive manufacturer or a device repair center to ask for device repair assistance.

If the second hard drive shows up in BIOS as the following image, move on to the next guide check the state of the problematic hard drive in Disk Management.

Second hard drive shows up in BIOS.

Phase 2. Check the State of Second Hard Drive in Device Manager

  • Step 1: Enter the Device Manager, expand "Disk drivers".
  • Step 2: Locate and check the second hard drive.
  • If it's covered by a yellow exclamation mark as shown below, update the disk driver.
  • Check Second hard drive driver state in Device Manager.
  • Step 3: Right-click the problematic drive and select "Update driver".
  • Update hard drive driver.
  • Step 4: Click "Automatically search for driver software online" and wait for the process to complete.

When the process finishes, restart your PC and check the disk again in the Device Manager. It will display as a normal disk by then and now you can move to Phase 3 continue fixing this issue.

If Windows doesn't find a new driver of your hard drive, you can try to find one on the device manufacturer's website and let them help you complete the driver update process.

Phase 3. Scan and Restore Saved Data from the Second Hard Drive

If your second hard drive is a new device, you can skip this phase and move to Phase 4 to make it detectable again.

However, if you saved important data in the second hard drive, you're highly recommended to extract saved data in advance. Professional hard drive recovery software like EaseUS Data Recovery Wizard will fully scan the second hard drive and find all saved data for you.

You can follow the guidelines below to restore all saved data from hard drive with ease now:

Step 1. Launch EaseUS hard drive recovery software

  • Run EaseUS Data Recovery Wizard and select the drive on your hard disk where you lost or deleted files.
  • Click Scan to start scanning all lost data and files.
Select hard drive disk to scan

Step 2. Scan to find all lost hard drive data

EaseUS hard drive recovery software will scan the whole selected drive and find all lost files, including all existing and hidden data.

Scan to find all hard drive data

Step 3. Preview and restore lost hard drive data and files

  • You can find your deleted and lost files in "Deleted files", "Drive" (with your device drive letter).
  • "Lost Partition Files" or "Extra Files" will list your formatted and RAW data there.
  • You can double-click found files to preview them.

After the preview, please select wanted files that you lost on the drive and click Recover to save them to a safe location on your PC or other external storage devices.

Restore lost hard drive data.

Remember to save the data to another secure device, an external hard drive is preferable. Now, you can move to the last phrase and get rid of this issue from your device, making the hard drive detectable and working again.

Phase 4. Check the Second Hard Drive in Disk Management and Make It Detectable

Open the Windows Disk Management and check the display state of the second hard drive. Then you can follow the provided solution to make the second hard drive show up.

# 1. Hard Drive Shows RAW - Format RAW Drive to NTFS

Second hard drive shows as RAW.

If the hard drive shows as Online, but the partition display as RAW, you can format the partition to NTFS.

  • Step 1: Right-click on This PC/My Computer, select "Manage".
  • Step 2: Click "Disk Management", locate and right-click the RAW partition, then choose "Format".
  • Step 3: Select NTFS as the file system for the partition and click "OK" to confirm.
  • format the sd card to ntfs with the build in tool

# 2. Hard Drive Shows Not Initialized + Unallocated

If the hard drive shows as a not initialized or unknown drive, don't worry. 

Fix second hard drive don't show up in Windows 10 error.

You can directly apply Windows partition manager software - EaseUS Partition Master with its Initialize to MBR or Initialize to GPT feature to make the hard drive show up now:

Step 1: Launch EaseUS Partition Master on your PC.

Step 2: Right-click the target hard drive and select "Initialize to MBR" or "Initialize to GPT" accordingly.

Fig 1. Initialize to MBR:

initialize to mbr

Fig 2. Initialize to GPT:

initialize to gpt

Step 3: Apply the operation

A pending operation of initializing disk to MBR or GPT disk will be added. Execute the operation and click "Apply".

click apply to start

Step 4: Right-click on the unallocated space on your hard drive and select "Create".

Create partition on unallocated space

Step 5: Adjust the new partition size, file system, label, etc.

Set the size, partition label, drive letter, file system to NTFS, etc. for the new partition and click "OK" to continue.

Set up new partition

Step 6: Click on the "Execute Operation" button and confirm to create a new partition by clicking "Apply".

Confirm and keep all changes

Repeat the partition creation process (from Step 4 to Step 6) if you plan to create more than one partition on the second hard drive. 

After following the whole process, now you can make use of the second hard drive in Windows 10 to save data again.

# 4. Hard Drive Displays as NO Media - Update Driver, Take It to Device Repair Center

If the second hard drive shows as "No Media" in Disk Management, you'll have two choices:

Second hard drive shows as no media.

  • 1st. Go back to Phrase 2 and update the device driver.
  • 2nd. Take the hard drive out of your computer, and send it to a local device repair center for repair.

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3. Why isn't it suggested to recover the files back to the original drive?

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5. How long does it take to scan the drive?

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